First picture of woman who threw toddler to his death from New York seventh-floor terrace

This is the first picture of a 53-year-old woman who threw a toddler to his death from the seventh storey of a New York apartment block on Tuesday night.

Xiao Aiu Cai allegedly hurled the infant - said to be either two or three years old - from the window of the apartment, and she was described by authorities as 'very depressed' and in a hysterical state.

Detectives say that shortly after the little boy fell to his death, witnesses reported Xiao screaming and being hauled back from the same window as she attempted to throw herself out.

Restrained: Xiao Aiu Cai is carried into the back of an ambulance after the incident, her arms strapped to a wheelchair as she is taken into custody

Thrown: A three-year-old boy was killed when he was flung from a seventh-floor terrace of an apartment by a 'very depressed' woman

The incident occurred in the Flushing district of New York at around 8.30pm on Tuesday night. The youngster died later in hospital.

'I saw a woman up there screaming,' resident Cynthia Herbin, said. 'She was trying to jump off and someone was trying to stop her from jumping.'

It is claimed Cai, who was restrained and taken into custody, was living at the address but not a member of the family. She had been involved in a dispute with her daughter.

Issues: The woman allegedly resopnsible attempted to throw herself from the window shortly after, but has held back

'She’s a very depressed individual and is on medication,' Queens DA Richard Brown said.

Chad Jenkins, 27, rushed to apply first aid to the toddler who was bleeding from the back of the head.